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Leica 50mm ƒ/2 APO Summicron-M ASPH

Aperture Series: Gnarled Prostrate Bristlecone (M240)

This series looks at sharpness and depth of field and what to expect at 50mm with the best Leica has to offer for M.

Gnarled prostrate bristlecone

An old warrior having battled many winters, lies prostrate for weather to sculpt. A cloud passed over the sun, and I took the opportunity to make a lower contrast shot at mid-day. The chill sets in quickly when the sun disappears at 11,500' elevation in mid-June.

Adobe Camera Raw 9.12.0 (784). View ACR Settings. Camera Profile = Adobe Standard. No lens corrections used. Diffraction mitigating sharpening for f11, f/16.

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Diglloyd Guide to LEICA contains in-depth coverage of Leica M system cameras and lenses, with additional coverage of Leica M Monochrom, Leica Q, Leica SL and Leica S.

Special emphasis is placed on Leica M lenses and certain Zeiss ZM lenses.

  • Make better images by learning how to get the best results right away.
  • Save money by choosing the right lens for your needs the first time, particularly the Summilux/Summicron/Elmarit choice and/or Zeiss ZM.
  • Make better images, a sort of “cheat sheet” saving yourself months or years of ad-hoc learning. Processing parameters are discussed and shown.
  • Jaw-dropping image quality found nowhere else utilizing Retina-grade images up to 28 megapixels filling up to 5K display, plus large crops [past 2 years or so].
  • Real world examples with insights found nowhere else. Make sharper images just by understanding lens behavior you won’t read about elsewhere.
  • Aperture series from wide open through stopped down, showing the full range of lens performance and bokeh.
  • Optical quality analysis of field curvature, focus shift, sharpness, flare, distortion, and performance in the field.

Want a preview? Click on any page below to see an excerpt as well as extensive blog coverage, for example on Leica.

Aperture series 2, 2.8, 4, 5.6, 8, 11, 16 available in full article

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